Oil Gas Production Christmas Trees
1. Casing Head - Bottom Slip Connection
Key Features:
(1) Connects surface casing using WD slip.
(2) Incorporates a BT secondary seal structure.
(3) Eliminates the need for precise length calculations of the casing string.
(4) Not affected by surrounding environmental factors or climate conditions.
(5) Installation is easy, fast, and reliable.
This casing head design is suitable for various sizes of casing, such as 30", 20", 13-3/8", 12-1/4", 9-5/8", 7", and 5-1/2". It can accommodate different types of casing threads, including CSG, LCSG, BCSG, TM, for the connection between the casing head and surface casing.
2. Casing Head - Bottom Thread Connection
Features:
(1) The bottom of the casing head connects to surface casing using various types of threads, such as CSG, LCSG, BCSG, TM, etc.
(2) Installation is convenient, rapid, and operationally safe and reliable.
3. Casing Head - Bottom Welded Connection
Key Features:
(1) The bottom of the casing head connects to the surface casing through welding.
(2) Includes a pressure test hole in the welding annular space to assess the effectiveness of the welding.
Technical parameter:
| Top flange |
Top flange |
Top flange |
Top flange |
| 11"×2000psi (279.4mm×14MPa) |
11"×2000psi (279.4mm×14MPa) |
11"×5000psi (279.4mm×35MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
| 11"×2000psi (279.4mm×14MPa) |
13-5/8"×2000psi (346.1mm×14MPa) |
11"×10000psi (279.4mm×70MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
| 11"×3000psi (279.4mm×21MPa) |
11"×3000psi (279.4mm×21MPa) |
11"×15000psi (279.4mm×105MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
| 11"×3000psi (279.4mm×21MPa) |
13-5/8"×2000psi (346.1mm×14MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
21-1/14"×2000psi (539.8mm×14MPa) |
| 11"×3000psi (279.4mm×21MPa) |
13-5/8"×3000psi (346.1mm×21MPa) |
13-5/8"×10000psi (346.1mm×70MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
| 11"×5000psi (279.4mm×35MPa) |
13-5/8"×3000psi (346.1mm×21MPa) |
13-5/8"×15000psi (346.1mm×105MPa) |
13-5/8"×5000psi (346.1mm×35MPa) |
Company Information
Since 1997, Puyang Zhongshi Group Co., Ltd has been a reputable manufacturer of a wide range of oilfield equipment and cementing accessories. As a restructured enterprise of SINOPEC, we have accumulated extensive expertise and experience in the industry. With a decade of export experience, we take pride in operating 9 subsidiary factories and employing over 500 dedicated professionals.
Our dedication to quality and excellence is evident through our certifications, which include API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001, and ISO 14001. These certifications serve as a testament to our credibility and adherence to international standards.
Our customer base extends across various regions, including America, Central Asia, Russia, Southeast Asia, the Middle East, and more. We have established ourselves as a top-tier supplier in the resources market of both SINOPEC and CNPC, showcasing our unwavering commitment to providing exceptional products and services to our esteemed clients.
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